Can Simple Electronic Instrumentation Associated with Basic Training Help Users of Assistive Devices? - Presenting and Verifying the Effectiveness of a Biofeedback Module for an Instrumented Crutch Topics: Biomechanical Devices; Biomedical Equipment; Biomedical Instrumentation; Biomedical Sensors In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 0BIOSTEC, 259-264, 2014 , ESEO, Angers, Loire Valley, France